Mandi, in Urdu/Hindi and Punjabi, means a 'market' or a market place. Mandi may also refer to: Places India Mandi, Jammu and Kashmir, a town on the Mandi River in the Poonch district of Jammu and
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b2572ddee29ce7d28e58787c7779a4007ce5a75a646be06dac23811db575b4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4809fffe-cd40-4131-94f7-14ad97f3b3fe.json and https://artists.proofprofile.net/proofs/artist/4809fffe-cd40-4131-94f7-14ad97f3b3fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f91115674897f8d33e4f35a921b75781547919c9f95926756b714705673e7e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2415076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90849db01d208ab73bb8c7931eaf4c2e5854ba0c7350084377dbcce20752a2a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2362531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17cec915ed3db7a7fc724cdb81ed606c79e1b1daf8bd9381f85e7813dd6dc40. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082402190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef14445cd67d60d323eadf028ae7b7a2af209e5f65a568a6b58630d0a19d1dfa. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282404088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca90a3d50f24731b7cf3f2b968ae62fec128bd1be16c36ffc10e13e2723324b5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2378858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768619191a04177d4815cd83a4c625428917e56a5e0a2c2c43c63fe8caa0dbe5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2378859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cd40abab5ed3c637c112fc2075b37a9cc7e5c305b0d4984bfb7cdc1115c5a2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2418188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7d31114ee1d6332724794a4df7661d8e8cf3ae80ac21fdb6f6a06a3b868dbc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHT2334358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4107e77a6be0cd3c7f672d31db66a91822222258140bfb560ed3f80486aa4d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19b97a83822e8a49669eae4d270850bec0c3e4b853f62152f6bf45ea51f1280. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22329299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84487566abfaa24543fb1432465dbe65a569dfe62dad2a2b6dc2660ae71e9fdc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA081900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7673cf6da749522c4f279034d21787f493be5a147ffbfa8149e0276bb779de52. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6361e34037235337617b617f64a9c70fd94676ba6e6d530d6cc418cdfd0bcfe. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0f714f0a42d3363bdffffd7aeb9ccbb9d851e74e3ed3c51276c7ea134ac1de. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91e3d04611240e53845b01e2d342d2d7ae1e27104965771985c6ae9536927cb. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf761208aaf57ba9f8063336fa5479f435a0913914ac134be822839c132e918df. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082200346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ab4c330470cb0f948e39d686864b97215568c550b7b17c59c7689d5400c0c4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2300297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c78d090ca5a9af160604b7554a152000043114e124e29b07cebae72052250d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082200321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02811e35c9301a81bc2860d8a75ae031087d2fa857012e614a8ad14317edf3a4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf310f7f40b2c64ed8bc4cf1f87745c4640b431e85117fa14b93e415481caa8e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082200261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3a3f4e39de2ddd6903afaa227d803d3196be1f08a4eddcec2962aa096eeb47. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2351528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f9aa955c2962b0085109025d89876d1ff6accbb5c06782695d4c95955e99a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72065eb07d9675c63ee58e9559957dbe16ee3cd0f8bb79da6b425a1f1d0f13ce. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MY2274082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3391fbf958fdc98f15335dd39d70298679656889bec6d32fe7c81d3785237f2. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRBAE1902884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e062e12102024611fb5410c819ddb56b8c1ee74e75d0e74b719d2b49be1208e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRBAE1902883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4258ada8ab85d6dad8db2328dff95c1476dc067cd82b5a27f5f90720cfbbe878. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd9dbfb45ff1b6cf7807c13559ac1b97abe71f3ca9d7e89537ee8c134b1c053. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf444a3f134ce692285983ace72872d9b01d042f6c08455789bd004732b3d7671. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082100368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc548ba2e01ce1f623931a6053982674d76009886ca43eea6c8d788292151545. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082000372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe9968bb7d57c72a002d850a7dd4d73c729fe4306fba198ec8fca2cb9fb38d3. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2365346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2ca849983fe3eae031f05a8d2af0db7c1168f3acc5919066af3dabc89ff6d6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082100272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf8be13759ba17ec37a5a90440ec591fd8c4751263cec962ef6cd0ef1f37aa0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f6dd6aab69b141e9e7c689c82d5b838027febdbd41ebd73fb3acd2388d6fd9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRBPU2500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700962e2b38ec2c541c72b4337765094bdfe90dbbe7e69ec75e17b147f07177. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2454003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca531c05b8e5e5b75fa4d317aa8ee666ed77821abf9442b884d296b644276a5f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2454333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916b7f412ac8d8d722214d5ce0f9226305ed0b02168090bd8a707118b3f45098. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2446189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e8b46af5a76b99a1bbe86d5e3e20e83cc7882a4899f8be38cb184f85196260. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92487902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cf5a220b6babde7272d42de171a0efae5179b71cd3640236fde3bf999b9794. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92487904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11ce404caa3347054378717891c8547962bd221077c0a3fb1882895df0a2695. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2436511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd8aee1df265bba2da32c76d006def45c174c9dbd93b0f90e8770132413d229. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ALA082502622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30091e8c532132423cc1644063b1a329d3c9734aec1cb363394096d3d28e9a4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2505979.